I've been keeping my eye on this one for a few years now. Basically it's a 1v1 game where one of you plays the sniper and the other the spy at the party. The spy has to complete various actions the sniper has to spot him and take him out. All amongst a party hosted by the ai.
Video Interview with the Developer covering the game as well
http://www.gametrailers.com/video/gdc-11-spyparty/712510
Their is an FAQ here
http://www.spyparty.com/faq/
Rock Paper Shot Gun Thoughts
http://www.rockpapershotgun.com/2010/07/29/spy-party-hard-hands-on-with-spy-party/
Game has a Beta request page
http://www.spyparty.com/beta-sign-up/
Main website which shows the beta request data he has been getting
http://www.spyparty.com
Video Interview with the Developer covering the game as well
http://www.gametrailers.com/video/gdc-11-spyparty/712510
Their is an FAQ here
http://www.spyparty.com/faq/
Rock Paper Shot Gun Thoughts
http://www.rockpapershotgun.com/2010/07/29/spy-party-hard-hands-on-with-spy-party/
Game has a Beta request page
http://www.spyparty.com/beta-sign-up/
Main website which shows the beta request data he has been getting
http://www.spyparty.com